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Forward rtl_fm stderr to Morse frontend diagnostic log

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rtl_fm prints device info, tuning, and errors to stderr but the morse
route only logged these server-side. Now stderr lines are forwarded to
the morse queue as info events, displayed in a compact diagnostic log
below the scope canvas. After 10s with no audio data, the scope text
escalates to prompt the user to check the SDR log.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Smittix
2026-02-26 09:43:28 +00:00
parent c0c066904c
commit bfae73cabf
4 changed files with 70 additions and 4 deletions
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50
static/js/modes/morse.js
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@@ -23,6 +23,7 @@ var MorseMode = (function () {
var scopeThreshold = 0;
var scopeToneOn = false;
var scopeWaiting = false;
var waitingStart = 0; // timestamp when waiting began
// ---- Initialization ----
@@ -152,9 +153,13 @@ var MorseMode = (function () {
// Update scope data
var amps = msg.amplitudes || [];
if (msg.waiting && amps.length === 0 && scopeHistory.length === 0) {
scopeWaiting = true;
if (!scopeWaiting) {
scopeWaiting = true;
waitingStart = Date.now();
}
} else if (amps.length > 0) {
scopeWaiting = false;
waitingStart = 0;
}
for (var i = 0; i < amps.length; i++) {
scopeHistory.push(amps[i]);
@@ -178,6 +183,9 @@ var MorseMode = (function () {
disconnectSSE();
stopScope();
}
} else if (type === 'info') {
appendDiagLine(msg.text);
} else if (type === 'error') {
console.error('Morse error:', msg.text);
}
@@ -263,10 +271,14 @@ var MorseMode = (function () {
if (scopeHistory.length === 0) {
if (scopeWaiting) {
scopeCtx.fillStyle = '#556677';
var elapsed = waitingStart ? (Date.now() - waitingStart) / 1000 : 0;
var waitText = elapsed > 10
? 'No audio data \u2014 check SDR log below'
: 'Awaiting SDR data\u2026';
scopeCtx.fillStyle = elapsed > 10 ? '#887744' : '#556677';
scopeCtx.font = '12px monospace';
scopeCtx.textAlign = 'center';
scopeCtx.fillText('Awaiting SDR data\u2026', w / 2, h / 2);
scopeCtx.fillText(waitText, w / 2, h / 2);
scopeCtx.textAlign = 'start';
}
scopeAnim = requestAnimationFrame(draw);
@@ -371,6 +383,30 @@ var MorseMode = (function () {
URL.revokeObjectURL(url);
}
// ---- Diagnostic log ----
function appendDiagLine(text) {
var log = document.getElementById('morseDiagLog');
if (!log) return;
log.style.display = 'block';
var line = document.createElement('div');
line.textContent = text;
log.appendChild(line);
// Limit to 20 entries
while (log.children.length > 20) {
log.removeChild(log.firstChild);
}
log.scrollTop = log.scrollHeight;
}
function clearDiagLog() {
var log = document.getElementById('morseDiagLog');
if (log) {
log.innerHTML = '';
log.style.display = 'none';
}
}
// ---- UI ----
function updateUI(running) {
@@ -398,6 +434,14 @@ var MorseMode = (function () {
var scopeStatus = document.getElementById('morseScopeStatusLabel');
if (scopeStatus) scopeStatus.textContent = running ? 'ACTIVE' : 'IDLE';
if (scopeStatus) scopeStatus.style.color = running ? '#0f0' : '#444';
// Diagnostic log: clear on start, hide on stop
if (running) {
clearDiagLog();
} else {
var diagLog = document.getElementById('morseDiagLog');
if (diagLog) diagLog.style.display = 'none';
}
}
function setFreq(mhz) {